100684047 has 24 divisors (see below), whose sum is σ = 145578384. Its totient is φ = 61661184.

The previous prime is 100684043. The next prime is 100684079. The reversal of 100684047 is 740486001.

It is not a de Polignac number, because 100684047 - 2² = 100684043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100684043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 521583 + ... + 521775.

It is an arithmetic number, because the mean of its divisors is an integer number (6065766).

Almost surely, 2^100684047 is an apocalyptic number.

100684047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

100684047 is a deficient number, since it is larger than the sum of its proper divisors (44894337).

100684047 is an equidigital number, since it uses as much as digits as its factorization.

100684047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 100684047 is about 10034.1440591612. The cubic root of 100684047 is about 465.2148342477.

The spelling of 100684047 in words is "one hundred million, six hundred eighty-four thousand, forty-seven".